NEET Solved Paper 2014 Question 41
Question: A location with luxuriant growth of lichens on the trees indicates that the [AIPMT 2014]
Options:
A) trees are very healthy
B) trees are heavily infested
C) location is highly polluted
D) location is not polluted
Show Answer
Answer:
Correct Answer: D
Solution:
- The situation suggests that the site is no polluted as lichens are the bioindicators for air pollution. These are the living organisms that respond in an especially clear way to a change in the environment. The lichens are useful indicators of especially $ SO _2 $ pollution because they derive their water and essential nutrients mainly from the atmosphere rather than from the soil. Detritivores (earthworm) is a detrivore which break down detritus into smaller particles.
